Justine enrolls in a music program. The cost of the program includes a one-time registration fee of $45 and a fee of $9 per lesson. If the average cost per music lesson is $12 and Justine has taken x classes, which equation represents this scenario?

Question

Mathematics

Skyler Brady

28 February, 13:38

Justine enrolls in a music program. The cost of the program includes a one-time registration fee of $45 and a fee of $9 per lesson. If the average cost per music lesson is $12 and Justine has taken x classes, which equation represents this scenario?

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Answers (1)

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Larry Mullen · Answer 1

The equation should be y=9x+45 of each lesson is 9 dollars and y=12x+45 if each lesson cost 12 dollars. That is because the 45 dollar initial cost is can be thought of as the y-intercept and the cost of each lesson is the slope.